n = 5;

b = 25.867325;

A = [
  1.075334  0.526197  -3.608734  0.657207  0.990262
  0.526197  -0.867184  3.377548  3.454253  1.561950
  -3.608734  3.377548  1.450808  1.426643  1.431982
  0.657207  3.454253  1.426643  2.818069  3.047428
  0.990262  1.561950  1.431982  3.047428  0.977788
];

C = eye(n);
